Improvement in looms for weaving pile fabrics



Sheet.

2 Sheetsj- S, decd. Aamx. Pile-Fabrics.

Patented April 7,1874.

772251 @New 2 Sheets--Sheet 2.

PiIe-Fahrns.

Patented April 7,1874.

No.149f292.

'.TNI'IED STATES PATENT rrIcnt SUSANr U. DAVIS, 0F NEW YORK, N. Y.,ADMINISTRATRIX OF EZEKIEL K.

DAVIS, DEGEASED.

IMPROVEMENT IN LOOMS-FOR WEAVING PILE FABRICS.

Specification forming part of Letters Patent No. 149,292, dated April 7,1874 application filed March 2G, 1873.

To all whom t may concern:

Be it known that EZEKIEL K. DAvIs, late of the city, county, and Stateof New York, deceased, did invent certain new and useful Improvements inLooms for Weaving Pile Fabries; and I, SUSAN C. DAVIS, hisadministratrix, of the same place, do hereby declare that the followingis a full, clear, and exact description of the same, reference being hadto the annexed drawings making part of this specification, in which-Figure l is a top or plan view. Fig. 2 is a front elevation. Fig. 3 isan elevation of the lay. Fig. 4 is a plan of the same. Fig. 5 is a fvertical transverse section of the wire-trough and the mechanism whichoperates it.

The same letters are employed in all the gures in the designation ofidentical parts.

The said E. K. DAVIS, in his lifetime, took out Letters Patent forimprovements in looms for weaving pile fabrics, such improvementsrelating especially to the mechanism for operating the wires. Theimprovements to which the present application applies relate to certainmodications of the loom described in said former Letters Patent; andconsist, first, in an improved device for operating the catch whichdraws the wire from the piles and afterward returns it to the shed, inwhich, by means of two cams, the said catch is positively actuated inboth directions with a diminution of friction and a convenience ofadjustment not attained by the original mechanism; also, in combiningwith the catch and cam a parallel motion, by which the catch is impelledin straight lines and with equal power through all parts of its path;also, in using, in combination with a shuttle-box, in one piece with alay, a wire-trough oscillating on a fixed horizontal axis, and in thesame plane with the lay, and having two parallel grooves in its upperedge, one to receive a wire-carrier sliding in it while the other holdsthe wire. In Vields patent, No. 505, of A.D. 1855, a somewhat similardevice was used for a wire-trough but in that case the carrier andgroove were overhung so as to pass over the shuttle-box; and it couldnot be used in combination with shuttle-boxes in the same plane; also,in combining with a lay, in one piece with the shuttle-box, awire-trough oscillating on a horizontal axis, and always parallel withlay and race. In the original patent of said DAVIS the shuttle-boxeswere separate from the lay, and were made to recede as the racc came upto the wire-trough. In other cases a lay and race in one piece have beenused in combination with mechanism for drawing the wires from the pile,either using only two wires,which were permanently attached to thereciprocating arm made to shift them from the pile to the shed, orhaving independent drawing and 'returning devices employed without theuse of a wire-troughLor having a wire-trough swinging on a vertical.axis and returning the wire to the shed at an angle to the line in whichit is drawn from the pile; also, the combination, with the wire-troughoscillating on a horizontal axis, of a rock-shaft, lever, and cam, bymeans of which the power which operates the former is applied at bothends thereof, to insure its constant parallelism.

In the annexed drawings, a loom is shown embodying these improvements,in which A is the lay, having the race A permanently attached thereto.It oseillates upon a horizontal axis in the usual manner, and isoperated by connecting-rods B B from cranks on the shaft C, on which isa spur-wheel, C', meshing into another spur-wheel, D, on the shaft D',carrying, also, a bevel-wheel, E, which drives the wheel F on the shaftF', at right angles to the shaft D. On this shaft F/ are fastened, byset-screws passing through their collars, by means of which they can beadjusted, two cams, Gr G, revolving in parallel planes. A slottedsegment, G', is placed between the cams, and embracing the shaft F andhaving upon each end and on opposite sides studs on which are frictionrollers G2 G2, bearing, respectively, against the edges of the two cams,on opposite sides of the shaft, so that, as the cams revolve, thesegment is madeto swing on the arm, by which the segment issuspendedfrom the breast of the loom. The segment has a lug attached toits lower side by which the horizontal connecting-rod is operated. Theother end of this rod is pivoted to the oscillating rod I, turning on awrist-pin, I', attached to an arm on the shaft L2. A parallel wrist-pin,similarly supported, carries the rod I2, which is pivoted above to thehorizontal arm of a bell-crank lever pivoted to the rod I at I3. Thevert-ical arm of the bell-crank lever I4 is slotted and embraces a studon the side K2 of the reciprocating catch. This mechanism imparts ahorizontal action to the catch, and applies the power equally in allpositions of the latter. The catch K is formed to engage the hooked endsof the wires in the wire-box, and a horizontal arm, K1, sets up the endsof the wires in the wire-box M. These parts are showny in the originalloom patented by said DAVIS. They are attached to a slide, K2,which-moves in grooves in the upper and lower faces of the wire-trough.In said original patent there is only one slot which serves as a guidefor the slide, and also for receiving the wire drawn from the pile. Thisslot passing entirely through the wire-trough, it was necessary toprovide a pin to support the wire when drawn from the pile, and also toprovide the means for retracting it, so as to be out of the way of theslide. In this improved loom the wire is drawn into an independentparallel groove,which supports it alongits whole length, and so the pinis not required. The Wire-trou gh is supported by arms L1, whichoscillate on the horizontal shaft L2, to which they are fastened, as isalso the arm H2, which carries the rods I l2. As the axis L2 is parallelto the axis of the lay, protracted, it follows that the trough willalways be parallel to the lay .and the race. An oscillating motion iscommunicated to the trough by rod L3 extending from the arlns Ll to armsattached to the shaft LG. The lever L4 fastened to said shaft carries afriction-roller, bearing on the edge of a cam, L5, on the shaft D1. Aspring, L7, extending from the arm L1, to a short extension of thecorresponding arm on the shaft L6, below the shaft, keeps thefriction-roller in contact with the edge of the cam, and, as itrevolves, the wire-trough is oscillated in proper relation to the motionof the lay, so as to draw the wires and return them in the mannercontemplated by the said original patent.

What I claim as being the invention of the said E. K. DAVIS, and desireto secure by Letters Patent, is

l. In combination with the reciprocating wire-catch of a loom forweaving pile fabrics and connecting operative mechanism,two camsarranged to act alternately in shifting the catch, by means of a slottedswinging segment, substantially as set forth.

2. In combination with the reciprocating catch and operating cams, theparallel motion consisting of the rods I I2 and bell-crank lever I4 andprovided with a slot, substantially as set forth.

3. In combination with a shuttle-box in one piece with the lay, awire-trough oscillating upon a horizontal axis and arranged to move upto and in the same plane with the shuttleboX, and having on its upperedge two parallel grooves, one to receive a narrow wire-carrier, slidingwithin it, and the other to receive and retain the wires as withdrawnand reinserted, substantially as set forth.

4. In combination with the lay constructed in one piece with theshuttle-box, a wire-trou gh parallel to the lay and race, andoscillating on a iiXed horizontal aXis and in the same, or nearly thesame, plane with the shuttle-boxes, so that the boxes do not run underthe trough, and the withdrawing and inserting catch-slide moving on thetrough, substantially as set forth.

5. In combination with The wire-trough oscillating upon a horizontalaxis, the parallel rock-shaft LG, connected to both arms of the trough,lever L4, and cam L5, substantall y as set forth.

In testimony whereof I have signed my n amc to the foregoingspecification in the presence ot' two subscribing witnesses.

SUSAN C. DAVIS, As Adzfnfistmtr'ix of the estate of E. K. Dfwis,deceased.

Vitnesses:

JOHN GRossLEY,J1-., RICHARD G. DURKIN.

